EV Charging Bay Priority Allocation to Cut Waiting Time

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Solution Overview

Problem

Existing systems lack an efficient method to prioritize access to charging stations for electric vehicles based on factors such as charge level, efficiency, and urgency, leading to inefficiencies and potential immobility due to prolonged waiting times.

Innovation Solution

A system that determines priority for accessing charging stations based on factors like current charge level, energy credits, frequency of use, and urgency, using a server to manage and allocate charging bay usage, ensuring efficient and timely charging by notifying vehicles to vacate if necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If charging stations are allocated on a first-come-first-served basis without priority management, then system simplicity is maintained, but charging efficiency and vehicle mobility deteriorate due to prolonged waiting times

Engineering Contradiction:
Improvecharging efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system changes the parameter of charging station allocation from simple temporal ordering (first-come-first-served) to a multi-parameter priority assessment involving charge level, energy credits, frequency of use, and urgency. This allows high-priority vehicles to skip the queue and access charging stations immediately, thereby improving charging efficiency without requiring complex physical infrastructure changes

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

A server acts as an intermediary between vehicles and charging stations, managing the priority-based allocation system. The server receives requests from vehicles, assesses their priority levels based on multiple factors, and coordinates access to charging stations. This intermediary manages the complexity centrally, keeping the overall system architecture relatively simple while enabling sophisticated priority management

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If charging stations are allocated without priority management, then ease of operation is maintained, but vehicle mobility deteriorates due to prolonged waiting times and potential immobility

Engineering Contradiction:
Improveease of charging accessVSAvoidvehicle mobility
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary assessment of vehicle priority before charging station allocation. By evaluating charge level, energy credits, frequency of use, and urgency in advance, the system identifies high-priority vehicles that need immediate charging. This preliminary action ensures that vehicles at risk of immobility receive prompt service, maintaining reliability while keeping the operation process streamlined through automated assessments

Inventive Principle:
Principle #10Preliminary action

3Productivity

If priority-based allocation is implemented, then charging efficiency is improved, but system complexity increases due to multiple assessment factors and notification mechanisms

Engineering Contradiction:
Improvecharging station utilizationVSAvoidpriority management system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The server performs multiple functions within a single system: it receives charging requests, assesses vehicle priority based on multiple factors, manages queue allocation, and sends notifications to vehicles. This multi-functionality consolidates what could be separate complex systems into a single coordinated platform, improving charging station utilization while managing complexity through functional integration rather than physical proliferation of components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12370917B2Electric transport charging determination
Publication Date: 2025.07.29 TOYOTA JIDOSHA KK
  • US12370917B2 patent drawing
  • US12370917B2 patent drawing
  • US12370917B2 patent drawing

AI summary

An example operation includes one or more of determining a first transport attempting to access a bay with a charging station can utilize the charging station and has a higher priority than a second transport utilizing the charging station in the bay and notifying the second transport to cease utilizing the charging station and to vacate the bay after a time.